{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:V7MOVLARA7V2WTUPWTDSK4TRIO","short_pith_number":"pith:V7MOVLAR","schema_version":"1.0","canonical_sha256":"afd8eaac1107ebab4e8fb4c725727143ab9ec3420d6afc99e27dc8f6f96e6acc","source":{"kind":"arxiv","id":"2409.19191","version":1},"attestation_state":"computed","paper":{"title":"Physical Parameters and Properties of 20 Cold Brown Dwarfs in JWST","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"Jifeng Liu, Shu Wang, Zhijun Tu","submitted_at":"2024-09-28T00:35:34Z","abstract_excerpt":"We present a comprehensive analysis of 20 T and Y dwarfs using spectroscopy from the NIRSpec CLEAR/PRISM and MIRI LRS instruments on the James Webb Space Telescope. To characterize the atmospheric parameters, we utilize two atmospheric model grids: the Sonora Elf Owl and ATMO2020++. The effective temperatures derived from the two models are relatively consistent, and metallicities are both close to solar values. However, significant discrepancies are found in other parameters, particularly in surface gravity, with the values obtained from the Sonora Elf Owl models typically being about 1 dex l"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2409.19191","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-09-28T00:35:34Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"21a91cf73b68f9b9d181979e357d42c407b82f954a5e44a286ca35732622811a","abstract_canon_sha256":"578ec0e722f6f37544cac07a8d5b213474db1f1350944f472c837bc50af46484"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:35:13.062472Z","signature_b64":"PkKZkYMzVrfx1Xv8VK7D8QuXAdh4qVVylSKaxyEx0pXDM1H2RTMABHCklT//EHY3jlc3XatO88Q8XmYVZqVzDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"afd8eaac1107ebab4e8fb4c725727143ab9ec3420d6afc99e27dc8f6f96e6acc","last_reissued_at":"2026-07-05T09:35:13.062001Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:35:13.062001Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Physical Parameters and Properties of 20 Cold Brown Dwarfs in JWST","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"Jifeng Liu, Shu Wang, Zhijun Tu","submitted_at":"2024-09-28T00:35:34Z","abstract_excerpt":"We present a comprehensive analysis of 20 T and Y dwarfs using spectroscopy from the NIRSpec CLEAR/PRISM and MIRI LRS instruments on the James Webb Space Telescope. To characterize the atmospheric parameters, we utilize two atmospheric model grids: the Sonora Elf Owl and ATMO2020++. The effective temperatures derived from the two models are relatively consistent, and metallicities are both close to solar values. However, significant discrepancies are found in other parameters, particularly in surface gravity, with the values obtained from the Sonora Elf Owl models typically being about 1 dex l"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2409.19191","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2409.19191/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"2409.19191","created_at":"2026-07-05T09:35:13.062060+00:00"},{"alias_kind":"arxiv_version","alias_value":"2409.19191v1","created_at":"2026-07-05T09:35:13.062060+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2409.19191","created_at":"2026-07-05T09:35:13.062060+00:00"},{"alias_kind":"pith_short_12","alias_value":"V7MOVLARA7V2","created_at":"2026-07-05T09:35:13.062060+00:00"},{"alias_kind":"pith_short_16","alias_value":"V7MOVLARA7V2WTUP","created_at":"2026-07-05T09:35:13.062060+00:00"},{"alias_kind":"pith_short_8","alias_value":"V7MOVLAR","created_at":"2026-07-05T09:35:13.062060+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/V7MOVLARA7V2WTUPWTDSK4TRIO","json":"https://pith.science/pith/V7MOVLARA7V2WTUPWTDSK4TRIO.json","graph_json":"https://pith.science/api/pith-number/V7MOVLARA7V2WTUPWTDSK4TRIO/graph.json","events_json":"https://pith.science/api/pith-number/V7MOVLARA7V2WTUPWTDSK4TRIO/events.json","paper":"https://pith.science/paper/V7MOVLAR"},"agent_actions":{"view_html":"https://pith.science/pith/V7MOVLARA7V2WTUPWTDSK4TRIO","download_json":"https://pith.science/pith/V7MOVLARA7V2WTUPWTDSK4TRIO.json","view_paper":"https://pith.science/paper/V7MOVLAR","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2409.19191&json=true","fetch_graph":"https://pith.science/api/pith-number/V7MOVLARA7V2WTUPWTDSK4TRIO/graph.json","fetch_events":"https://pith.science/api/pith-number/V7MOVLARA7V2WTUPWTDSK4TRIO/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/V7MOVLARA7V2WTUPWTDSK4TRIO/action/timestamp_anchor","attest_storage":"https://pith.science/pith/V7MOVLARA7V2WTUPWTDSK4TRIO/action/storage_attestation","attest_author":"https://pith.science/pith/V7MOVLARA7V2WTUPWTDSK4TRIO/action/author_attestation","sign_citation":"https://pith.science/pith/V7MOVLARA7V2WTUPWTDSK4TRIO/action/citation_signature","submit_replication":"https://pith.science/pith/V7MOVLARA7V2WTUPWTDSK4TRIO/action/replication_record"}},"created_at":"2026-07-05T09:35:13.062060+00:00","updated_at":"2026-07-05T09:35:13.062060+00:00"}